Philips SOX 90W BY22d at tiny prices! Fast shipping. Philips quality in large quantities with important discounts! Contact us! Philips SOX 90W BY22d details Philips SOX light bulbs are low pressure sodium vapor discharge lamps that offer outstanding luminous efficiency over time. These lamps are highly efficient thanks to the uniform distribution of sodium in the discharge tube. Philips SOX 90W BY22d lamps have a diameter of 56 mm and a BY22d base type. Philips SOX 90W BY22d light bulbs provide a monochromatic yellow light (1800K) for a light intensity of lumen. The Philips SOX 90W BY22d lamp range are dimmable and energy efficient. Their lifespan is very long, 18000 hours on average. Philips SOX 90W BY22d use are mainly used for lighting harbors, but these lights can also be used for airport lighting. These lamps can also be placed in orientation signs or as safety lighting.